Aggregate demand
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The total spending on goods and services in a period of time at a given price level
Consumption
The total spending by consumers on domestic goods
and services
Durable and non durable
Investment
The addition of capital stock to the economy
Replacement investmant
Induced investment
Government spending
Depends on policies
Net export
Goods and servcices bought and sold by foriegners
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Changes in the components of aggregate demand
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Changes in income
Changes in interest rates
If interest rates change there is less borrowing and
consumption will fall
If interest rates fall people will borrow more
Changes in wealth
Made up of the assets peopkle own
2 main
factors for wealth
A change in the housing market
A change in the stocks and shares
Changes in consumer confidence
If people ar optimistic about the future they will
spend more
Household indeptness
The extents to which households are willing and able to borrow money
affect consumption. If interest rates are low and it is easy to borrow and
spend increasing AD. If interest rates rise household will have to spend more
to re-pay their loans and mortgages and spending will drop.
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What causes changes in investment
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Interest rates
People will borrow money
Changes in national income
As national ncome rises more demand then more
investments into new plants
Tech changes
Expextations
Planning for the future
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What causes changes in gov spending
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Based on policy
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What casuses changes in net export
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Fiscal policy
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Fiscal policy- the set of governments policies relating to its
spending and taxation rate.
Direct taxes-taxes on income
Indirect taxes- taxes on goods and services
Money supply= refers to the amount of money in circulation at a given
period of time
Interest rate= Base rate/discount rate/prime rate-the price charged
to borrow money. The rate charged by the central bank to other banks
Expansionary fiscal policy
(Encourage consumption-shift AD right)
Lower income tax to increase disposable income
Lower corporate taxes to encourage investment
Increase government spending to improve or increase public services
Contractionary fiscal policy
(Discourage consumption-shift AD left)
Raise corporate taxes
Decrease government spending
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Monetarty polic
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The set of official policies governing the supply of
money in the economy and the level of interst rates in an economy
Expansionary monetary policy
Decrease the interest rate
Increase the money supply
Decrease the reserve ratio
Buy back governments bonds
Contractionary monetary policy
Increase the interest rate
Decrease the money supply
Increase the reserve rate
Sell gov bonds.
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lol
Saturday, April 21, 2012
agg demand¨
S 14 aggregate demand work sheet
Consumption
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The total spending by consumers on domestic goods and services
·
Durable Goods-any good that’s going to be
consumed over a period of time.
·
Non-Durable Goods- are goods such as rice,
toilet paper and newspapers that are used immediately or in a relatively
short period of time.
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Investment
|
Defined as the addition if capita stock. Investment is carried out by
the firms and there are two types: 1. Replacement investment- firms spending
to maintain the productivity if their existing capital.
2. induced investment occurs when firms spend on capital to increase
their output to respond to higher demand in the economy.
·
Capital Stock- includes all goods that are
made by people and are used to produce other goods or services such as
factories, machines, offices or computers.
|
Government spending
|
Governments at a variety of levels (federal, state/provincial) spend
on a wide variety of goods and services; health, education, law and order,
transport, social security, housing and defence.
Depends on gov. policies.
|
Net exports (X-M)
|
Export revenues minus import expenditures (the figure can be either
positive (when revenues exceed expenditure) or negative (when expenditure
exceeds revenues))
If net exports is pistive it will add to AD, if it is negative, it
will reduce AD
|
What
causes changes in Consumption?
|
||
1
|
Changes in income-
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When national income goes up, aggregate demand goes up.
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2
|
Changes in interest rates-
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When interests rates goes up, aggregate demand goes down
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3
|
Changes in wealth-
|
An increase in wealth results in a rightward shift of the AD curve
Wealth goes up demand up
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4
|
Changes in expectations /consumer confidence-
|
Optimism about the economic future results in more spending now:
ogton measure by consumer confidence index
|
5
|
Household indebtedness-
|
The extents to which households are willing and able to borrow money
affect consumption. If interest rates are low and it is easy to borrow and
spend increasing AD. If interest rates rise household will have to spend more
to re-pay their loans and mortgages and spending will drop.
|
What
causes changes in Investment?
|
||
1
|
Changes in Interest Rates
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When it goes u demand goes down
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2
|
Changes in level of National Income
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If it goes up demand goes up
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3
|
Technological Changes
|
When it goes up demand goes up
|
4
|
Changes in expectations /business confidence-
|
When it goes up demand goes up
|
What
causes changes in Government Spending?
|
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1
|
Changes in policy-
|
Dependent on policy
|
What
causes changes in Net Exports?
|
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1
|
Changes in domestic national income-
|
An increase in Y puts pressure to decrease
|
2
|
Changes in foreign income-
|
When foreign incomes rise rightward preasrure is placed on AD because
foreigners buy exports.
|
3
|
Relative currency values-
|
If domestic currency has a high value leftward pressure is placed on
AD because to foreigners goods/services seem expensive.
|
4
|
Trade policies
|
Protectionist policies put leftward pressure on AD whereas free-trade
policies place rightward pressure on AD.
|
5
|
Relative inflation rates among trading partners
|
Hight inflation rates make goods seem expensive to foreigners.
|
C
∆s in Y
∆s in i (interest rate)
∆s in consumer confidence
∆s in wealth
Household indebtedness
|
I
∆s in Y
∆s in i (interest rate)
∆s in business confidence
Technological changes
|
G
∆s in government policies
|
X-M
∆s in Y
∆s in foreign Y
∆s in exchange rates
∆s in trade policies
Relative inflation rates
|
1
|
Congress cuts taxes
|
right
|
2
|
Interest rates rise
|
left
|
3
|
Government spending to increase; president promises no increase in
taxes.
|
right
|
4
|
Consumer confidence jumps
|
right
|
5
|
Stock market collapses
|
left
|
6
|
Productivity rises for fourth straight year
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right
|
7
|
Value of the pound increases sharply
|
left
|
Tuesday, April 3, 2012
Name Kristian Villadsen
The Level of Overall Economic Activity Objectives Organizer
Define Macroeconomics:
Branch of economics that studies decision making for the economy as a whole, ie examining growth
Objective 1: List and explain the five main macroeconomic goals of an economy.
Economic growth
| 1. a steady rate of increase of national output
|
Employment
| a low level of unemployment |
Price stability
| a low and stable rate of inflation |
External stability
| a favorable balance of payments position. |
Income distribution
| an equitable distribution of income |
*The order here is quite logical, if it helps you remember.
Objective 2: Describe and illustrate the circular flow of income model of the economy for a closed (two-sector) economy and an open (four sector) economy with government and financial markets.
Closed (two-sector) micro circular flow model
Factor resource market |
Product market |
House holds |
firms |
expenditure |
Goods and services |
Rent, wages, interest profit |
Land, labour, capital, etr |
Open (four-sector) macro circular flow model
households |
firms |
expenditure |
income |
Investments |
exports |
Governments spending |
Savings |
imports |
taxes |
Notice/Know and understand the relationships!
Leakage Injection
Savings
| Foregoing current consumption to allow future consumption -|banks |
Investment | An increase in capital stock by firms to expand output -|borrow from banks |
Imports
| Spending on imports is a leakage -|the money flows out of circulation to foreign firms |
Exports | Foreigners spend money to buy domestic products thereby injecting money into an economy |
Taxes
| Taxes are paid to the government (taking that money out of circulation) |
Subsidies | Government spending injects money into the circular, flow. |
Define Transfer Payments-
A payment to an individual from the government that does not expect an increase in output
Important Conclusions:
· The economy is in equilibrium when:
LEAKAGES=INJECTIONS
· If leakages rise without a corresponding increase in injections:
THE NATIONAL OUTOUT WILL FALL, THERE WILL BE LESS INCOME CIRCULATING.
· If injections rise without a corresponding rise in leakages:
THERE WILL BE MORE MONEY IN CIRCULATION
Objective 3: Distinguish between the output approach, the income approach and the expenditure approach for measuring national income. [know the different ways GDP is calculated]
*The most common measure of a country’s national income is gross domestic product (GDP).
There are three methods to calculate GDP:
1
| The output method | Measures the actual value of the goods and services produced (# 3 on circular flow)
Calculated by summing all the value added by all the firms in an economy (making sure not to double count by subtracting input cost)
Data usually grouped according to different production sectors: primary, (agriculture, mining), secondary (manufacturing), tertiary (services) |
2
| The income method | Measures the value of all the incomes earned economy (wages, rent, interest, profits) (#2 on circular flow) |
3
| The expenditure method | Measures the value of all spending on goods and services in the economy. –Calculated by summing spending by different sectors in the economy (c+i+g+x-m (number 4 of circular flow) Consumption, investment, governments, net exports |
National Output = National Income = National Expenditure
How accurate are these statistics? In theory they are always equal, is this really true? Why? Why not?
Presumably accurate depending how develpoe or underdeveloped the country may be
The data comes from may and varied sources so inevitably there are inaccucies leading to imbalances among the final values
Some inaccuracies are due to timing, some are due to collection
Objective 4: Define and distinguish between Gross Domestic Product (GDP) and Gross National Product (GNP)/ Gross National Income (GNI) as measures of economic activity.
GDP- The total value ofof all final goods+services produced in an economy in a given year measured by c+i+g+(x-m)
GDP- may be defines as the total value og all economic activity in a country regardless of who owns the productive assests
Ie. An Indian MNC operating within canadas borders and earning profit towards canadas GDP, not indias.
GNP/GNI-
Is the total income earned by a country’s factors of proudction regardless of where the assets are located?
Formula for GNP/GNI:
GNP= GDP + net property income from abroad (income earned by assets abroad minus income paid to foreign assets operating domestically)
GNI versus NNI: Net national product
NNI=GNI- depreciation of capital stock (capital consumption)
NNI takes into account the depracitate (loss of value) off capital or capital consumption due to:
Wear and tear as machinery is used
Damage to capital equipment
Absolute technology
Objective 5: Define and distinguish between total GDP & GNP/GNI and per capita GDP & GNP/GNI
Per capita:
Total gdp divided by the population
What does looking at per capita statistics allow for that looking at total statistics does not?
Comparison between countries
Objective 6: Define and distinguish between the nominal value of GDP and GNP/GNI and the real value of GDP and GNP/GNI.
Nominal: number (not adjusted for inflation)
real: Number adjusted for inflation (done using the gdp deflator)
Why are ‘real’ values of national income statistics more valuable than nominal values?
Objective 6: Explain the meaning and significance of “green GDP”
Green GDP= GDP-enviromental costs of production
Green GDP is a measure of GDP that ctakes into account any environmental costs incurred from the production of the coods and services included in the GDP figures
China calculated green GDP for 2004 + showed a 3% costs for pollution
Stopped calculating the next year due to arguments
India is discussing calculating green GDP accounts in 2015
Objective 7: Evaluate the uses of national income statistics.
Why are they gathered?
| Act as a report growth been achived |
| Gov. uses stats to develop policies |
| Economist to stats to develop models and make forecasts |
| Business use stats to male forecasts about future demand |
| To measure performance of the economy over time (real) |
| As a starting point for measuring the welfare of a nations people |
| AS a base for comparing different countries |
What are the limitations of national income statistics?
Inaccuracies
| Dara used to calculate the measure comes from a variety of sources such as tax claims, output data and sales data. Figures tend to become more accurate overtime (after a lag) as they are revised Statisticians try to be as accurate as possible, and in more devoped countries The UN SNA works to improve data |
Hidden economy | Unrecorded or under recorded economic activity, informal market -National income accounts only record information formally reported and officially recorded They don’t include do it yourself work or work done at home This is quite significan in devoping countries where much output does not get recorded Also the hidden economic (black market) |
Externral costs
| Negative externalities of production
|
Life concerns
| GDP ,amu grow because people are working longer hours or taking power holidays
|
Composition of output
| Is it possible that a large part of a countries outpit is in goods that do not benefit consumers -military equipment - in this case it would be hard to argue a higher GPD will raise living standards
|
Objective 8: Explain and illustrate the business cycle and its phases.
Periodic fluctuations in economic activity measured by changes in real GDP Demonstrates patterns seen in developed countries of periods of rising growth, followed by periods of slowing growth and even falling growth. |
boom Recovery
expansion contraction expansion
Long term trends and output gaps
Positive output gap-
the economy is producing above its trend- inflation is likely to be a problem.
Negative output gap-
gap- the economy is producing below its trend- unemployment is likely to be a problem
Objective 10: Calculate nominal GDP from national income data using the expenditure approach.
GDP = C + I + G + (X - M)
C = Household and personal consumption expenditures
I = Gross private domestic investment expenditures
G = Government consumption and gross investment expenditures
X = Expenditures on goods and services exported
M = Expenditures on goods and services imported